From Wikipedia:
Augustinus Triumphus
Augustinus Triumphus, also known as Augustinus of Ancona or Agostino Trionfo, was a Hermit of St. Augustine and writer. He is celebrated for his work Summa de potestate ecclesiastica, printed in 1473. In the latter part of the sixteenth century, according to William J. Bouwsma it became 'a standard repository of papalist arguments'; and was several times reprinted... Read More